1)Production enforce standard
Design & Manufacture Std.: API 6D API608
Face to Face Std.: ANSI B16.10 API 6D
Flange dimensions: ANSI B16.5
Butt welding dimension: ANSI B16.25
Pressure temperature lating: ANSI B16.34
Inspection and test: API 598 API 6D
2)Mostly parameter
Size: 2"-56"
Pressure stage: Class150Lb--2500Lb
Material: WCB, LCB, CF8, CF3, CF3M ,CF8M, A105
Operated Way: : Gear, Pneumatic, Electric
Structure Type: Two-Piece, Three-Piece
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